# CVE-2024-0560: Apicast: use_3scale_oidc_issuer_endpoint of token introspection policy isn't compatible with rh-sso 7.5 or later versions

Status: published. Published: 2024-02-28. Updated: 2026-11-05.

A vulnerability was found in 3Scale, when used with Keycloak 15 (or RHSSO 7.5.0) and superiors. When the auth_type is use_3scale_oidc_issuer_endpoint, the Token Introspection policy discovers the Token Introspection endpoint from the token_introspection_endpoint field, but the field was removed on RH-SSO 7.5. As a result, the policy doesn't inspect tokens, it determines that all tokens are valid.

## Remediation

- workaround: Use an alternate auth_type: auth_type: client_id+client_secret. Disabling the policy entirely might be a temporary solution if the alternate {{auth_type is not feasible for some reason. The only purpose the token introspection endpoint serves is for sessions that are revoked in RH SSO before the standard TTL expires via the exp claim. (source: CNA: redhat)

## Affected products and versions

-  /  (APIcast): ≥ 0; < 2.14.1 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat 3scale API Management Platform 2 (apicast): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.49% as of 2026-11-04; percentile 42.00%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-280

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/security/cve/CVE-2024-0560 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2258456 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://github.com/3scale/APIcast/pull/1438 (CNA: redhat)

- https://access.redhat.com/security/cve/CVE-2024-0560 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred)

- https://bugzilla.redhat.com/show_bug.cgi?id=2258456 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred)

- https://github.com/3scale/APIcast/pull/1438 (ADP: CVE; x_transferred)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-0560; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-0560; retrieved 2026-11-05; source updated Not reported

Revision: 6339bf016972f365e030d28bc3d837699c3dbf155a63f54625ebb2c42ac1c3e9

Canonical: https://y2.dev/cve/CVE-2024-0560

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